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Question

The 200 m free style women's swimming gold medal at Seol Olympic 1988 went to Heike Friendrich of Each Germany when she set a new Olympic record of 1 minute and 57.56 seconds. Assume that she covered most of the distance with a uniform speed and had to exert 460 W to maintain her speed. Calculate the average force of resistance offered by the water during the swim.

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Solution

Power = Force × velocity
velocity = 200m117.56sec

=1.7012m/s

So Force = 4601.7012N

Force=270.33N

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